There's considerable evidence that the Leggett-Garg inequality is violated in QM: http://physicsworld.com/cws/article/news/27640
the experimenters claim that this rules out a large class of realist interpretations.
Nonetheless, the Bohm interpretation--a hidden, realist hidden variable...
I'm sure there's been a lot of posts on this before, but even after taking a look at some of them, this experiment is still eluding my understanding.
I'm aware that there's no backwards causation--and that the eraser causes interference by random 'categorization'--but I'm nonetheless...